Space-based visible all-reflective stray light telescope

Dexter Wang; Leo R. Gardner; Wallace K. Wong; Peter Hadfield

doi:10.1117/12.44519

1 August 1991 Space-based visible all-reflective stray light telescope

Dexter Wang, Leo R. Gardner, Wallace K. Wong, Peter Hadfield

Proceedings Volume 1479, Surveillance Technologies; (1991) https://doi.org/10.1117/12.44519
Event: Orlando '91, 1991, Orlando, FL, United States

Abstract

A 6-inch diameter aperture space-based visible telescope has been optimized to perform surveillance against the space background with earth albedo as a primary source of straylight. A three mirror off-axis anastigmat has been designed to cover a 1.4 degree(s) by 6.6 degree(s) field- of-view with 60 (mu) radian spatial resolution. The telescope body and optics are constructed of 6061-T6 aluminum to provide a thermally stable optical system. The optical elements are 'superfinished' to minimize scatter. Extensive baffles and stops are utilized to further reduce straylight. The telescope will be used on the Midcourse Space Experiment platform.

Citation Download Citation

Dexter Wang, Leo R. Gardner, Wallace K. Wong, and Peter Hadfield "Space-based visible all-reflective stray light telescope", Proc. SPIE 1479, Surveillance Technologies, (1 August 1991); https://doi.org/10.1117/12.44519

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